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App Dev Worksheet: Navigation

App development lesson 11: Navigation: tabs and the back button · Set 156 · 40 questions
TalentJR

Developer's tip (Stack of screens): Open a screen → it goes on top of the stack. Back → the top screen closes; you see the one underneath. Tap a tab → you jump to that tab’s main screen. Backs needed to get home = screens on the stack − 1.

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  1. 1.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) at the bottom (d) inside a button
  2. 2.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
  3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Edit photo”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  4. 4.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
  5. 5.🧭 Why should every screen show where you are? (a) to hide the menu (b) to look busy (c) to use more battery (d) so users do not get lost
  6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Quiz tab
    3. open “Edit photo”
    Which screen are you on now?     (a) Lessons (b) Quiz (c) Edit photo (d) Match report
  7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Lessons tab
    3. tap the Me tab
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Video”
    3. tap the Profile tab
    4. open “Badges”
    5. open “Video”
    Which screen are you on now?     (a) Video (b) Search (c) Home (d) Badges
  9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap Back
    3. tap the Lessons tab
    4. tap the Me tab
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  10. 10.Which of these is true of a tab bar? (a) opens a list of pages (b) goes to the last screen (c) undoes one move (d) shows 3 to 5 icons
  11. 11.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a tab bar (c) a menu button
  12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Lessons tab
    3. open “Badges”
    4. tap Back
    5. open “Friend list”
    Which screen are you on now?     (a) Friend list (b) Help page (c) Badges (d) Lessons
  13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Badges”
    3. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Profile tab
    3. tap the Home tab
    4. open “Edit photo”
    Which screen are you on now?     (a) Edit photo (b) Search (c) Home (d) Profile
  15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Search tab
    3. open “Help page”
    4. tap Back
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
  16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap the Lessons tab
    Which screen are you on now?     (a) Edit photo (b) Match report (c) Quiz (d) Lessons
  17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Me tab
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
  18. 18.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
  19. 19.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a tab bar (c) a menu button
  20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Edit photo”
    3. open “Friend list”
    4. tap the Profile tab
    5. open “Help page”
    Which screen are you on now?     (a) Help page (b) Friend list (c) Home (d) Edit photo
  22. 22.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
  23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Quiz tab
    3. open “Match report”
    4. open “Score card”
    5. open “Help page”
    Which screen are you on now?     (a) Match report (b) Score card (c) Video (d) Help page
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Edit photo”
    3. open “Edit photo”
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Edit photo”
    3. open “Score card”
    Which screen are you on now?     (a) Lessons (b) Match report (c) Score card (d) Edit photo
  26. 26.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) hides extra links (d) switches main sections
  27. 27.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) undoes one move (c) hides extra links (d) goes to the last screen
  28. 28.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) hides extra links (d) sits at the bottom
  29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. tap the Home tab
    4. tap the Search tab
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  30. 30.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) goes to the last screen (d) opens a list of pages
  31. 31.Which of these is true of the back button? (a) sits at the bottom (b) switches main sections (c) goes to the last screen (d) hides extra links
  32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Score card”
    3. open “Edit photo”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Search tab
    3. open “Match report”
    4. tap the Home tab
    Which screen are you on now?     (a) Match report (b) Search (c) Map (d) Home
  34. 34.Which of these is true of the back button? (a) opens a list of pages (b) undoes one move (c) switches main sections (d) shows 3 to 5 icons
  35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Me tab
    3. tap the Lessons tab
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
  36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
  37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Edit photo”
    3. tap the Chat tab
    4. open “Help page”
    Which screen are you on now?     (a) Feed (b) Help page (c) Video (d) Edit photo
  38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    Which screen are you on now?     (a) Lessons (b) Edit photo (c) Quiz (d) Video
  39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Friend list”
    4. tap Back
    5. open “Badges”
    Which screen are you on now?     (a) Friend list (b) Match report (c) Badges (d) Lessons
  40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. open “Match report”
    4. tap the Home tab
    Which screen are you on now?     (a) Profile (b) Match report (c) Search (d) Home

Answer key

  1. at the bottom
  2. the back button
  3. 0
  4. a tab bar
  5. so users do not get lost
  6. Edit photo
  7. 0
  8. Video
  9. 1
  10. shows 3 to 5 icons
  11. a menu button
  12. Friend list
  13. 3
  14. Edit photo
  15. 0
  16. Lessons
  17. 1
  18. a tab bar
  19. the back button
  20. 1
  21. Help page
  22. a tab bar
  23. Help page
  24. 4
  25. Score card
  26. switches main sections
  27. hides extra links
  28. sits at the bottom
  29. 1
  30. opens a list of pages
  31. goes to the last screen
  32. 2
  33. Home
  34. undoes one move
  35. 1
  36. 0
  37. Help page
  38. Video
  39. Badges
  40. Home

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